"""
boo!
foobang!
"""

interface IBoo:

	def Boo() as string

interface IFoo(IBoo):

	def Bang() as string

class ConcreteFoo(IFoo):

	def Boo():
		return "boo!"

	def Bang():
		return "foobang!"

c = ConcreteFoo()

print c.Boo()
print c.Bang()

